Thermal management system for electric vehicles

Pending Publication Date: 2022-08-25
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0017]It is an object of the present disclosure to provide a thermal management system for electric vehicles capable of greatly increasing flow rate of a coolant in

Problems solved by technology

Unless heat from the battery as well as a driving motor is appropriately removed, the parts cannot exhibit the optimum performance.
Furthermore, an interior cooling and heating problem must be solved even in the electric vehicle, and air conditioning performance at the time of interior cooling and heating greatly affects energy efficiency of the vehicle.
Consequently, it is difficult to in increase flow rate of the coolant, when the flow rate of the coolant that passes through the radiator is reduced, and therefore cooling performance is

Method used

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  • Thermal management system for electric vehicles
  • Thermal management system for electric vehicles
  • Thermal management system for electric vehicles

Examples

Experimental program
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Example

[0092]In the first embodiment shown in FIG. 2, the position of a third valve 116 is different from the position of the third valve 116 of the comparative example shown in FIG. 1. However, there is no difference between the embodiment and the comparative example in that the third valve 116 is a valve that is installed on a first bypass line 115 diverging from a first coolant line 114 so as to connect the front end and the rear end of a first radiator 113 to each other and that is configured to allow a refrigerant to selectively flow to the first radiator 113.

[0093]In the first embodiment shown in FIG. 2, the third valve 116 is installed at a branch point at which the first bypass line 115 diverges from the first coolant line 114 between a reservoir tank 111 and the first radiator 113. The third valve 116 may be a three-way valve capable of performing flow distribution. Functionally, there is no difference between the third valve 116 of FIG. 1 and the third valve 116 of FIG. 2.

[0094]A...

Example

[0177]In the second embodiment of the present disclosure, the flow control devices include a first flow control valve set 190a, which is a first flow control device, and a second flow control valve set 200a, which is a second flow control device. In the second embodiment of the present disclosure, installation positions of the first flow control valve set 190a and the second flow control valve set 200a are not different from the installation positions of the first flow control valve 190 and the second flow control valve 200 of the first embodiment. In addition, disposition states of front and rear wheel motors 175 and 174, front and rear wheel inverters 171 and 172, and an integrated charging control unit 173 are not different from those in the first embodiment.

[0178]In the thermal management system according to the second embodiment, a first coolant line 114 connected to a first radiator 113, a second coolant line 127 connected to a second radiator 124, and a third coolant line 183...

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Abstract

A thermal management system includes: a first radiator, a first electric water pump, and a first coolant line configured to allow a coolant to be circulated by the first electric water pump; a second radiator, a second electric water pump, and a second coolant line configured to allow a coolant to be circulated by the second electric water pump; and a first flow control device and a second flow control device installed at front ends and rear ends of the first radiator and the second radiator so as to control a coolant flow direction between the first coolant line, the second coolant line, and a third coolant line. The third coolant line is installed so as to connect the first flow control device and the second flow control device to each other.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims, under 35 U.S.C. § 119(a), the benefit of priority to Korean Patent Application No. 10-2021-0025221 filed on Feb. 25, 2021, the entire contents of which are incorporated herein by reference.BACKGROUND(a) Technical Field[0002]The present disclosure relates to a thermal management system for electric vehicles, and more particularly to a thermal management system for electric vehicles capable of greatly increasing the flow rate of a coolant in each coolant line and the flow rate of the coolant passing through each radiator and improving cooling performance under various vehicle conditions through coolant flow control.(b) Background Art[0003]In general, a vehicle is equipped with a heating, ventilation, and air conditioning (HVAC) system configured to heat or cool the interior of the vehicle. The air conditioning apparatus constantly maintains temperature in the interior of the vehicle at the optimum temperature, irresp...

Claims

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Application Information

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IPC IPC(8): B60H1/00B60K11/04B60K1/00B60L53/302B60L58/26H01M10/613H01M10/625H01M10/6568H01M10/66H01M10/6556
CPCB60H1/00278B60H1/00885B60K11/04B60K1/00B60L53/302B60L58/26H01M10/613H01M10/625H01M10/6568H01M10/66H01M10/6556B60H2001/00307B60H2001/00949B60L2210/10B60K2001/005B60K2001/006H01M2220/20B60H1/00392B60H1/3228H01M10/6567H01M10/663B60L53/22B60L2240/34B60L2240/36B60L2240/425B60L2240/525B60L2240/545B60L58/27B60K2001/003B60K11/02B60H1/00921B60H1/32284Y02T10/70H01M10/633F01P7/165F01P3/12H02P27/06B60K7/0007B60K1/02B60L15/20B60H1/323F01P2007/146F01P2005/105F01P2050/22H02J2207/20B60L2240/46B60Y2200/91
Inventor JEONG, SEONG BINCHO, WAN JEJEONG, JAE EUNLEE, HYUN JAEPARK, NAM HOKIM, TAE HEE
Owner HYUNDAI MOTOR CO LTD
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